Improvement in machines for making composition roofing



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ISR-AEL L. G. RICE, 0F CAMBRIDGE, MASSACHUSETTS.

Letters Patent No'. 104,887, dated J une 28, 1870.

The Schedule referred to in these LettersPatent and making part of the same.

which composition roofing may bc made cheaper and more expeditiously than is now done; and

It relates particularly to the rooting manufactured under patents granted to Jay J. W iggiu.

In order to better understand the machine. l wiil give a brief description of the roong retin-red to.

This roofingis made of a compound of coal-tar, lime, and clay, boiled and stirred together. This compound, in a liquid state (that is, the coal-tar is melted, and the other ingredients are so thoroughly mixed that the whole compound is in a thick fluid state) is poured upon a longr bed covered with fine sand. This bed isy usually twenty-tive feet long and two feet wide.

A carriage, havingr a wood roller, upon which is wound a quantity oi' thick paper, and also having another roller, to be used as a pressure-roller, is used. This carriage is pushed along over the bed, and, as it moves, the paper is drawn under the pressure-roller and on top of the composition. The composition adheres to the paper, and the roofing is made.

My invention consists in furnishing a bed, over which I draw the paper. Placed over this bed I have a receptacle for composition, from which it iows upon the. paper and adheres toit. As the paper is drawn along with the melted composition upon the surface, I give it a sprinkling of fine sand on top, by means of a. hopper to hold the sand, and a sieve under it. The papel-is drawn along, and the surplus sand scraped off by means of a scraper. It is then drawn be-4 tween two rollers, which press it out even :md smooth.

Description of theiccomjmnyzfng Drawing.

Figure 1 is a pcrspective'view oi' a machine embodying my invention.

l Figure 2 is aseeticnal view of the reverse side of' the drawing, in perspective.

,Gener/'etDescripton. is the frame o?? the machine. is the bed of the machine. is the rc-ecptasls ihr the composition. i t'ae wud-hopper.

he scraper.

A. :i D

s t F, thepressure-inllers.

H E, the gears upon the shafts of the rollers.

I, a crank for operating thc machine.

J is a cani upon the shaft of the pressure-roller F.

K isrod, which is struck by the cam, and then thrown back in to place by the spring L. Its object is to give a blow to the sieve M, and thus shake out the sand that is in it.

N is a drum, having an endless bolt passing over it, O, and alsoA passing over the drum I. this belt is to receive the rooting as it is given ont by the machine.

The paper pnt upon a roller, R, and passes under lthe roller S and over the roller T, and then over the bed B into the receptacle C. The composition then comes in contact with it and adheres to it. There are two sliding partitions that form the -front and rear of the receptacle. The one in thc rear, U', is raisedA just suilicient for the paper to pass under it; the one in front, U2, is raised to thc height I want the rooting to be in thickness. The paper is then moved along, and, as it 'passes under the sand-hopper and sieve, it receives a sprinkling oi' sand. The surplus sand'is then 'scraped o' by thc scraper. 1t then passes between the pressure-rollers and out upon the endless belt.

This beit is inade'long enough to carry the material out a sufficient distance for it to become cool. Thus it is found to require five minutes for the composition to become cool enough to roll up in packages.

Now, the rate I propose to make the roofing is twenty-tive feet iu length a minute. At this late the roofing would have to he carried out one hundred aml twenty-five feet before yit became cool.

Whenit gets to the drum P I draw it between thc rollers V Y. The surplus sami in the meantime drops into the box NV. i

I then out it off in lengths to suit, with the knife X, and roll it up for sale.

o To keep the composition at an even degree of temperature, steam-pipes should be put into the receptacle.

If the weight of the composition be too heavy upbh vthe paper, a bottom to the reccptable lnay bs put in above th'c bed B B, and the compound be allowed to ilowout upon the paper by means of an aperture made in the bottom of the receptacle, and being regulated by an adjustable scraper. l

If the rooting be too`soi`t to be drawn ont by the friction of the pressure-rollers, friction-rollers may be placed out some distance from them, at a point where the rooting is cold, and then these friction-rollers would draw it out, .as they are made to lgcvoire by any suitable Ieans.

- This machine may bc used for manufacturing composition rooting, sidewalks, and, perhaps,h`y vKilling the receptacle with gine and keeping it hotysand-paper and emeryeioth might be made;

The object ot' Vlt' the mate inl should be in such a condition that :in additional rolling would improve it, pressure-rollers may be put on the machine, one being,r placed under the belt and :mother above it, and the roofing be made 1o pass between them and be pressed.

Claims.

What I claim as my invention, and desire to secm'e by Letters Patent, is-

1. The hopper D, sieve M, and scraper E, arranged between the receptacle C and the pressure-rollers F 1"", substantially as shown and described.

2. The rollers R S T, receptacle C, bed B, hopper D, sieve M, scraper E, and pressure-rollers Fl F, when combined, substantially as herein shown and described, and for the purpose specified.

3. The combination with the above-named parts, of the drum N, endless belts O, drum P, rollers -V l 'V, and knife X, as shown and described.4

ISRAEL L; G. RICE.

Witnesses:

S'r. CLAIR Emmy, BARNARD DOHERTY. 

